Dispensing valve



Patented Uet. 10, 1922..

iuurrpsrnrrs LOUIS KOOIEBSTEIN, YORK, N. Ya, ASSIGNOR IO (VESTDISINFECTING COM- rnrrur PANY, OF NEW YORK, N. Y., A CORPORATION OF NEWYORK.

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Application filed February 20, 1920. Serial no. 360,148.

To all whom it may concern:

Be it known that I, LOUIS Koornns'rnm, a citizen of the United States,residing at New York, county and State of New York, have inventedcertain new and useful11nprovements in Dispensing Valves, 01 which thefollowing is a full, clear, and exact specification. l i a i i Thisinvention relates more particularly to thatclass of valves operated by apush rod or plunger to dispense small quantities of liquid, such assoap, and usually into the hand of the operator. The object of thepresent invention is to provide a device of thistype which avoids theuse of packings or washers in connection withthe movable parts and whichis capable otlong andcontinned use without adjustment; a further objectbeing to provide novel and eliicient means which prevents the flowofliquid through the valve directly from the main supply in allpositions of the plunger.

The invention will'be understood by reference to the accompanyingdrawing, in

which- Fig. 1 is an enlarged longitudinal crosssection of an embodimentof the invention, and

Fig. 2 is a, fragmentary longitudinal cross-section illustrating amodification of the inlet end of the device.

Byreference to the drawing, it will be seen that the device comprises acasing 1,

formed on its upper interior face with a shallow threaded flange 1 toreceive the threaded outer face of a sleeve 2, the latter being formedwith a reduced conical end which constitutes the dispensing end of thedevice. By means of flange'l the outer wall of the sleeve is spaced fromthe inner wall of the casing, to provide a chamber 4, this chamber beingclosed at its lower end by means of a packing ring?) fitted within arecess formed in the end of the casing, the ring being maintained inposition by a flange 6 projecting from the conical lower wall of thesleeve. A series of sockets 7 are formed in flange 6 for the receptionof a tool by means of which the sleeve may be rotated.

Slidably movable within the sleeve 2, and shaped to conform with theconical end of the latter, is a plunger 8, its lower end projectingbelow the end of the sleeve. Plunger enlarged at its upper end engagingthe lower face of block 9. v 8 isgreater inwidth than the nut 15 sothat.the plunger is free to move upwardly with 8 is designed to operate avalve controlling the passage of liquid into the sleeve, and the valveand its 18800121138 parts will now be described.

out changing the position of ball 12 until the bottom wall of the socketcomes into contact with the nut. a

i In the embodiment of the invention illustrated in Fig. 1, theball 12is operated as a member of a double-acting valve. To such end, the blockis formed with a chamber 16, the inner wall of which is threaded toreceive a disk 17 formed with a central aperture 18 which is enlarged atits lower end to form a conicalseat 19 for the ball. The disk 17 isformed transversely of its upper face with a channel 20 by means ofwhich it may be rotated by a suitable tool from a pointexterior to theremovable cap 21, when desired.

It will be noted that in the embodiment of the invention illustrated inFigure 1, liquid may flow through apertures 18, 10 into the sleeve 2only when ball 12 is in a position intermediate its valve seats 11, 19.The liquid is free to flow from the sleeve into the chamber 4: throughinlet ducts 22 formed in the wall of the sleeve, the sleeve also beingformed with apertures 23 which provide outlet ducts for chamber 4:.

In the operation of the device, the plunger in its upward movement willclose inlet duct 22 and open outlet duct 23, after which operations theplunger will engage the nut or other contact member 15 on the end of rod13 and the rod willthereupon be raised to successively unseat ball 12and reseat it in conical seat 19 thus permitting a flow of liquid intothe sleeve and immediately thereafter closing the sleeve against theadmi e sion of fluid. The opening of outlet duct 223 permits the flow ofliquid from chamber l, thence intermediate the elevated conical portionof the plunger and finally through the discharge end of the sleeve via aduct afforded by a depression 24 in the plunger. In the reverse movementof the plunger ball 12 is again moved by the pressure of spring 14 toits intermediate position and immediately thereafter drops to seat 11.The plunger in its continued movement, under the pressure of spring 25,closes, outlet duct 23 and opens inlet duct 22 so that chamber 4 isagain filled with fluid from the reservoir in the sleeve intermediateblock 9 and the plunger.

In the modification illustrated in the fragmentary view, Fig. 2 disk 17is dispensed with, and hence the inlet valve is single-acting, thedevice in other respects being substantially the same as thatillustrated in Fig. 1-.

Having described my improvements what I claim is:

1. In a dispensing valve, in combination, a casing, a sleeve within thecasing, a chamber intermediate the sleeve and casing and provided withinlet and outlet ducts through said sleeve, a plunger disposed withinthe sleeve, a valve normally closing the sleeve against the admission offluid, and a valve rod suspended from the valve, whereby the plunger inits inward movement will open and close the outlet and inlet ductsrespectively, and engage the valve rod to open the said valvesuccessively.

from the valve, a spring acting upon the valve rod to seat the valve,and a spring acting to maintain the plunger in its outer position,whereby the plunger in its inward movement will control the said ductsand valveto successively permit the flow of fluid from the first chamberand admit fluid into the second chamber.

3. In a dispensing valve, a casing and means for admitting fluid intoand discharging fluid from said casing including a plug threaded in theinlet end of the casing and formed with an aperture enlarged on theupper face of the plug to form a valve seat, a ball in said seat, a roddepending from the ball, a plunger adapted to engage said rod andconcentric springs engaging said plug, one spring acting upon the rod toseat the ball, and one spring acting to retract the plunger.

Signed at New York city, in the county of New York and State of NewYork, this 19th day of February. A. D. 1920.

LOUIS KOOPERSTEIN.

